Sevin is the brand name of an insecticide used to kill a variety of insects and spiders. Sevin comes in both solid and liquid forms. Liquid forms of Sevin may be either concentrated or diluted depending on the specific type that is purchased.
Sevin targets insects and spiders, including Japanese beetles and earwigs. Because the poison does not penetrate into plant tissue, it's safe to use around plants and is useful for killing plant-eating insects that may damage a garden. Concentrated forms of liquid Sevin are usually mixed with water in a pump or automatic sprayer, which are helpful for applying the poison to a wide area.